Questions from Organic Chemistry

Q: The following reaction was attempted during the total synthesis of crispine A

The following reaction was attempted during the total synthesis of crispine A, a cytotoxic alkaloid isolated from a Mongolian thistle. Propose a plausible mechanism for the formation of compound 2 fro...

Q: Propose a plausible mechanism for the following transformation and justify the stereochemical

Propose a plausible mechanism for the following transformation and justify the stereochemical outcome:

Q: Rank this group of compounds in order of increasing boiling point.

Rank this group of compounds in order of increasing boiling point.

Q: Identify whether each of the following compounds is expected to be water

Identify whether each of the following compounds is expected to be water soluble:

Q: For each of the following pairs of compounds, identify which compound

For each of the following pairs of compounds, identify which compound is the stronger base:

Q: Rank the following compounds in terms of increasing basicity: /

Rank the following compounds in terms of increasing basicity:

Q: When (E)-4-amino-3-buten-

When (E)-4-amino-3-buten-2-one is treated with molecular hydrogen in the presence of platinum, the resulting amine is more basic than the reactant. Draw the reactant and the product and explain why th...

Q: For each of the following compounds, draw the form that predominates

For each of the following compounds, draw the form that predominates at physiological pH:

Q: Draw the structure of an alkyl halide or carboxylic acid that might

Draw the structure of an alkyl halide or carboxylic acid that might serve as a precursor in the preparation of each of the following amines:

Q: The following compound cannot be prepared from an alkyl halide or a

The following compound cannot be prepared from an alkyl halide or a carboxylic acid using the methods described in this section. Explain why each synthesis cannot be performed.